| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/3TLQ9HS | |||
| Repository | sid.inpe.br/mtc-m21c/2019/07.17.17.01 | |||
| Last Update | 2019:08.09.18.35.49 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2019/07.17.17.01.08 | |||
| Metadata Last Update | 2021:02.11.18.14.29 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | RomeroSouz:2019:OpFaSt | |||
| Title | Optimal factorization of the state-dependent Riccati equation technique in a satellite attitude and orbit control system  | |||
| Year | 2019 | |||
| Access Date | 2024, May 20 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 565 KiB | |||
| 2. Context | ||||
| Author | 1 Romero, Alessandro Gerling 2 Souza, Luiz Carlos Gadelha de | |||
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JHN3 | |||
| Group | 1 DIDMC-CGETE-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Universidade Federal do ABC (UFABC) | |||
| Author e-Mail Address | 1 romgerale@yahoo.com.br 2 luiz.gadelha@ufabc.edu.br | |||
| Conference Name | International Conference on Structural Engineering Dynamics | |||
| Conference Location | Viana do Castelo, Portugal | |||
| Date | 24-26 June | |||
| History (UTC) | 2019-08-09 18:35:49 :: simone -> administrator :: 2019 2021-02-11 18:14:29 :: administrator -> simone :: 2019 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Abstract | The satellite attitude and orbit control system (AOCS) can be designed with success by linear control theory if the satellite has slow angular motions and small attitude maneuver. However, for large and fast maneuvers, the linearized models are not able to represent all the perturbations due to the effects of the nonlinear terms present in the dynamics and in the actuators (e.g., saturation). Therefore, in such cases, it is expected that nonlinear control techniques yield better performance than the linear control techniques. One candidate technique for the design of AOCS control law under a large maneuver is the State-Dependent Riccati Equation (SDRE). SDRE entails factorization (that is, parameterization) of the nonlinear dynamics into the state vector and the product of a matrix-valued function that depends on the state itself. In doing so, SDRE brings the nonlinear system to a (nonunique) linear structure having state-dependent coefficient (SDC) matrices and then it minimizes a nonlinear performance index having a quadratic-like structure. The nonuniqueness of the SDC matrices creates extra degrees of freedom, which can be used to enhance controller performance, however, it poses challenges since not all SDC matrices fulfill the SDRE requirements. Moreover, regarding the satellite's kinematics, there is a plethora of options, e.g., Euler angles, Gibbs vector, modified Rodrigues parameters (MRPs), quaternions, etc. Once again, some kinematics formulation of the AOCS do not fulfill the SDRE requirements. In this paper, we evaluate the factorization options (SDC matrices) for the AOCS exploring the requirements of the SDRE technique. Considering a Brazilian National Institute for Space Research (INPE) typical mission, in which the AOCS must stabilize a satellite in three-axis, the application of the SDRE technique equipped with the optimal SDC matrices can yield gains in the missions. The initial results show that MRPs for kinematics provides an optimal SDC matrix. | |||
| Area | ETES | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMC > Optimal factorization of... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34R/3TLQ9HS | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34R/3TLQ9HS | |||
| Language | en | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/446AF4B | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.54.10 8 | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject targetfile tertiarymark tertiarytype type url volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||